TY - JOUR
T1 - Quality of Service for Workflows and Web Service Processes
JF - Journal of Web Semantics
Y1 - 2004
A1 - Amit Sheth
A1 - Jonathan Arnold
A1 - Jorge Cardoso
A1 - John Miller
A1 - Krzysztof Kochut
KW - METEOR-S
KW - QoS Implementation
KW - QoS Matrix
KW - QoS Specification
KW - Quality of Service
KW - Web Process QoS
KW - Workflow QoS
AB - Workflow management systems (WfMSs) have been used to support various types of business processes for more than a decade now. In workflows or Web processes for e-commerce and Web service applications, suppliers and customers define a binding agreement or contract between the two parties, specifying Quality of Service (QoS) items such as products or services to be delivered, deadlines, quality of products, and cost of services. The management of QoS metrics directly impacts the success of organizations participating in e-commerce. Therefore, when services or products are created or managed using workflows or Web processes, the underlying workflow engine must accept the specifications and be able to estimate, monitor, and control the QoS rendered to customers. In this paper, we present a predictive QoS model that makes it possible to compute the quality of service for workflows automatically based on atomic task QoS attributes. We also present the implementation of our QoS model for the METEOR workflow system. We describe the components that have been changed or added, and discuss how they interact to enable the management of QoS.
ER -